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    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="main" style="height: 400px"></div>
    <script src="../libs/echarts-5.3.3.js"></script>
    <script>
      window.onload = function () {
        let myChart = echarts.init(document.getElementById("main"));
        let option = {
          backgroundColor: "rgba(255, 0, 0, 0.1)",
          grid: {
            show: true,
            backgroundColor: "rgba(0, 255, 0, 0.1)",
          },

          tooltip: {
            position: "top", // top
          },
          xAxis: {
            data: ["衬衫", "羊毛衫", "雪纺衫", "裤子", "高跟鞋", "袜子"],
          },
          yAxis: {},
          series: [
            {
              type: "bar",
              data: [5, 20, 36, 10, 10, 20],
            },
          ],
        };
        myChart.setOption(option);

        // 1.实现提示框轮播的功能
        setInterval(function () {
          autoToolTip();
        }, 1000);

        let index = 0; // 0-5

        function autoToolTip() {
          index++;
          if (index > 5) {
            index = 0;
          }
          // 1.显示提示框
          myChart.dispatchAction({
            type: "showTip", // 触发的action type
            seriesIndex: 0, // 系列的 索引
            dataIndex: index, // 数据项的 索引
            position: "top", // top
          });
        }
      };
    </script>
  </body>
</html>
